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Explosives & its properties
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59:00
MCQ discussion part 5 from book of Dr NC dey Mining legislation, CMR 2017
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Workmen Inspector & Safety Committee under Mines Rules 1955
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Geology part 1 effect of geological disturbances on mining, fault, fold, dyke, sill etc
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Inspection of sump in mine
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Longwall Mining Salvaging operation
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Mines Act 1952 part 1 definition employed mine etc
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